Compare 1807 vs 1815
| Property | 1807 | 1815 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 4 |
| Prime factorization | 131 × 1391 | 31 × 51 × 112 |
| Prime factorization | 13 × 139 | 3 × 5 × 11 × 11 |
| Divisors count | 4 | 12 |
| Divisors | 1, 13, 139, 1807 | 1, 3, 5, 11, 15, 33, 55, 121, 165, 363, 605, 1815 |
| Number of properties | 1 | 0 |
| Semiprimes | 520th | |
| Roman numberals | MDCCCVII | MDCCCXV |
| Base 2 | 111000011112 | 111000101112 |
| Base 3 | 21102213 | 21110203 |
| Base 4 | 1300334 | 1301134 |
| Base 5 | 242125 | 242305 |
| Base 6 | 122116 | 122236 |
| Base 7 | 51617 | 52027 |
| Base 8 | 34178 | 34278 |
| Base 9 | 24279 | 24369 |
| Base 10 | 180710 | 181510 |
| Base 11 | 13a311 | 140011 |
| Base 12 | 106712 | 107312 |
| Base 13 | a9013 | a9813 |
| Base 14 | 93114 | 93914 |
| Base 15 | 80715 | 81015 |
| Base 16 | 70f16 | 71716 |